Process of rendering textile material non-inflammable.



UNITED, STA E PATENT OFFICE.

WILLIAM WARR, OF STA LEYBRIDGE, ENGLANDV PROCESS OF RENDERING TEXTILE MATERIAL NON-INFLAMMABLE.

$PECIFICATION forming part of Letters Patent No. 723,088, dated March 17, 1903.

Application filed December 26,1902. Serial No. 136,740. (No specimens.)

To on whom it may concern:

Be it known that LWILLIAM WARE, a subject of the King of Great Britain, residing at Buckton Vale Print Works, Staleybridge, in the county of Chester,England, have invented certain new and useful Improvements in Processes of Rendering Textile Material Non- Inflammable, of which the following is a specification.

My invention relates to improvements in and in means for treating textile and other pose of rendering such fabrics as flanneletteand such materials aswood less liable to ignite when exposed to fire; but, so far as I am aware, titanium has never been employed for this purpose.

According to my present invention I propose to saturate or impregnate the goods, ma-

terials, or substances to be rendered non-inflammable with titanium. I

For example, inapplying my invention to i a cotton cloth, such as fiannelette, and to certain other fabrics, materials, and substances I impregnate the material, preferably after drying, with a solution of staunate of soda (or its chemical equivalent) of a strength of from 8 to 16 Twaddell. I then dry and again saturate the material, this time with a solution of a titanium salt, any soluble salt of ti- 1 tanium being applicable for the purposes of my invention. The strength of the titaniumsalt solution should be such that every gallon will contain about ten ounces of titanium oxid. The material is again dried and the titanium subsequently fixed by a suitable alkaline bath. The bath I prefer is a solution of silicate of soda ofa strength of about 20 Twaddell; but I may employabath composed of tungstate of soda and ammonium chlorid. The material is then washed and dried and finished as required.

As an alternative I may treat the goods, materials, or substances in a mixed bath containing titanium and tungsten and a suitable solvent.

I wish it to be understand that I do not limit myself to the above process or to any particular strengths or proportions of ingredients or order of procedure, as the essence of my invention consists of the application of titanium or any suitable salt of titanium to goods, materials, or substances for the purpose of rendering them non-inflammable.

What I claim as my invention, and desire to secure by Letters Patent of the United States, is-

1. The herein-described process of rendering textile material non-inflammable which consists in first impregnating the material with a solution of stannate of soda, next drying the same, then impregnating it with a solution of titanium salt and drying it, next fixing the titanium by an alkali-bath and finally washing and drying, substantially as described. I

2. The herein-described process of rendering textile material non-inflammable which consists in first impregnating the material with a solution of stannate of soda, next drying the same, then impregnating it with a solution of titanium salt and drying it, next fixing the titanium by means of a. bath of silicate of soda and washing and drying, substantially as described.

In witness whereof I have hereunto set my hand in presence of two witnesses.

WILLIAM WARR. Witnesses:

S. W. GILLETT,- HERBERT R. ABBEY. 

